Journal ArticleDOI
Highly Elastic Organic Crystals for Flexible Optical Waveguides.
TLDR
An elastic crystal of a Schiff base, (E)-1-(4-(dimethylamino)phenyl)iminomethyl-2-hydroxyl-naphthalene, which is highly bendable under external stress and able to regain immediately its original straight shape when the stress is released can serve as a low-loss optical waveguide even at the highly bent state.Abstract:
The study of elastic organic single crystals (EOSCs) has emerged as a cutting-edge research of crystal engineering. Although a few EOSCs have been reported recently, those suitable for optical/optoelectronic applications have not been realized. Here, we report an elastic crystal of a Schiff base, (E)-1-(4-(dimethylamino)phenyl)iminomethyl-2-hydroxyl-naphthalene. The crystal is highly bendable under external stress and able to regain immediately its original straight shape when the stress is released. It displays bright orange-red emission with a high fluorescence quantum yield of 0.43. Intriguingly, it can serve as a low-loss optical waveguide even at the highly bent state. Our result highlights the feature and utility of "elasticity" of organic crystals.read more
Citations
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Journal ArticleDOI
From Molecules to Interactions to Crystal Engineering: Mechanical Properties of Organic Solids.
TL;DR: This Account describes efforts at focusing down into mechanical properties of organic molecular crystals from the viewpoint of crystal engineering, which is the synthesis and design of functional molecular solids and presents examples where complex properties may be deliberately turned on or off in organic crystals.
Journal ArticleDOI
The Rise of the Dynamic Crystals
Panče Naumov,Panče Naumov,Durga Prasad Karothu,Ejaz Ahmed,Luca Catalano,Patrick Commins,Jad Mahmoud Halabi,Marieh B. Al-Handawi,Liang Li +8 more
TL;DR: The most recent developments in the research of adaptive molecular crystals are highlighted and their assets and pitfalls are discussed, providing some hints on the likely future developments that capitalize on the untapped, sequestered potential for applications of this distinct materials class.
Journal ArticleDOI
Mechanophotonics: Flexible Single-Crystal Organic Waveguides and Circuits.
Mari Annadhasan,Abhijeet R. Agrawal,Surojit Bhunia,Vuppu Vinay Pradeep,Sanjio S. Zade,C. Malla Reddy,Rajadurai Chandrasekar +6 more
TL;DR: A rare one-dimensional optical waveguiding crystal of dithieno[3,2-a:2',3'-c]phenazine with high aspect ratio displaying high mechanical flexibility and selective self-absorbance of the blue part of its fluorescence (FL) is presented.
Journal ArticleDOI
Creating Elastic Organic Crystals of π-Conjugated Molecules with Bending Mechanofluorochromism and Flexible Optical Waveguide.
TL;DR: Two fluorescent and highly flexible organic crystals (1 and 2) which could bend under an applied stress are reported on, which showed a unique bending mechanofluorochromism.
Journal ArticleDOI
Dual‐Mode Light Transduction through a Plastically Bendable Organic Crystal as an Optical Waveguide
Luca Catalano,Durga Prasad Karothu,Stefan Schramm,Ejaz Ahmed,Rachid Rezgui,Timothy J. Barber,Antonino Famulari,Panče Naumov,Panče Naumov +8 more
TL;DR: This prototypical dual-mode organic optical crystalline fiber brings mechanically compliant molecular organic crystals closer to applications as novel light-transducing media for wireless transfer of information in all-organic micro-optoelectronic devices.
References
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Journal ArticleDOI
Fabrication and Characterization of Organic Single Crystal‐Based Light‐Emitting Devices with Improved Contact Between the Metallic Electrodes and Crystal
Ran Ding,Jing Feng,Xu-Lin Zhang,Wei Zhou,Hong-Hua Fang,Yue-Feng Liu,Qi-Dai Chen,Hai-Yu Wang,Hong-Bo Sun +8 more
TL;DR: In this paper, a template stripping technique was employed to fabricate single-crystal-based organic light-emitting devices (OLEDs), and efficient and uniform carrier injection induced by an improved contact between crystals and both top and bottom electrodes was realized, so that a homogeneous and bright electroluminescence (EL) were obtained.
Journal ArticleDOI
Vapor-phase π–π molecular recognition: a fast and solvent-free strategy towards the formation of co-crystalline hollow microtube with 1D optical waveguide and up-conversion emission
TL;DR: In this paper, a facile vapor deposition process was used to obtain orderly 1D hollow tubular structures with high fluorescence quantum yield (47%), optical waveguide, and two-photon emission properties.
Journal ArticleDOI
Cation−Cation π−π Stacking in Small Ionic Clusters of 1,2,4-Triazolium
TL;DR: In this article, the existence of cation−cation π−π stacking in the 1,2,4-triazolium−dinitramide tetramer and 1, 2, 4-triaxolium-chloride tetramide (two cations and two anions) was predicted based on the structures optimized using second-order perturbation theory.
Journal ArticleDOI
Tuning Growth of Low-Dimensional Organic Nanostructures for Efficient Optical Waveguide Applications
Taifeng Liu,Yongjun Li,Yongli Yan,Yuliang Li,Yanwen Yu,Nan Chen,Songhua Chen,Chao Liu,Yong Sheng Zhao,Huibiao Liu +9 more
TL;DR: A novel amphiphilic porphyrin derivative DOCP-Zn has been synthesized and utilized to construct tunable nanostructures from 0D to 1D by controlling the axial coordination of zinc porphrin with 4,4′-bipyridine.
Journal ArticleDOI
Flexibility in a Molecular Crystal Accomplished by Structural Modulation of Carbohydrate Epimers
Manas K. Panda,Manas K. Panda,Kumar Bhaskar Pal,Gijo Raj,Rajesh Jana,Taro Moriwaki,Goutam Dev Mukherjee,Balaram Mukhopadhyay,Panče Naumov +8 more
TL;DR: In this paper, it was shown that hydrogen bonding of water molecules is the key element for sliding over the slip planes in the crystal and accounts for the plastic bending of organic crystals.
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